| Message ID | 20241112185217.48792-2-nsaenz@amazon.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v2,1/2] x86/efi: Drop support for the EFI_PROPERTIES_TABLE | expand |
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 375ebd78296a..a7ff189421c3 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -765,6 +765,7 @@ static void __init kexec_enter_virtual_mode(void) efi_sync_low_kernel_mappings(); efi_native_runtime_setup(); + efi_runtime_update_mappings(); #endif }
Kexec bypasses EFI's switch to virtual mode. In exchange, it has its own routine, kexec_enter_virtual_mode(), which replays the mappings made by the original kernel. Unfortunately, that function fails to reinstate EFI's memory attributes, which would've otherwise been set after entering virtual mode. Remediate this by calling efi_runtime_update_mappings() within kexec's routine. Cc: stable@vger.kernel.org Fixes: 18141e89a76c ("x86/efi: Add support for EFI_MEMORY_ATTRIBUTES_TABLE") Signed-off-by: Nicolas Saenz Julienne <nsaenz@amazon.com> --- Notes: - Tested with QEMU/OVMF. arch/x86/platform/efi/efi.c | 1 + 1 file changed, 1 insertion(+)